reverse lookups [was Re: Release page review / comments, plus HEADS UP to our mirrors.]
Bill Hacker
wbh at conducive.org
Fri Apr 8 22:21:59 PDT 2005
Jay wrote:
On Fri, Apr 08, 2005 at 08:51:49PM -0700, Claus Assmann wrote:
The (static) IPv4 address of my computer is 63.195.85.27 which maps
to adsl-63-195-85-27.dsl.snfc21.pacbell.net
Forward and reverse lookup match; sendmail will not complain about
the mapping (BTW: I'm the sendmail maintainer, so I know a bit about
MTAs and anti-spam measures... and as I run the next generation of
sendmail on my system I won't use some external "smart host".)
You need an in-addr.arpa delegation. Then you can make the appropriate
entries in your DNS server. Unfortunately, I rate the chances of
pacbell delegating a DSL user a reverse zone about zero.
Nowhere near that high ;-)
Bill
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